Home / 1,984.38-2,720.70-1,949.28

Finding the Fourth Proportional to 1,984.38, 2,720.70 and 1,949.28

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Solution

The fourth proportional to 1,984.38, 2,720.70 and 1,949.28 is: 2,672.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.38 : 2,720.70 = 1,949.28 : x
  2. Step 2: Convert to fraction form
    1,984.38/2,720.70 = 1,949.28/x
  3. Step 3: Cross multiply
    1,984.38x = 2,720.70 × 1,949.28
  4. Step 4: Simplify right side
    1,984.38x = 5,303,406.10
  5. Step 5: Solve for x
    x = 5,303,406.10/1,984.38
  6. Step 6: Final answer
    x = 2,672.58

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.